As of 10 pm CT, the National Hurricane Center says Nicholas has become a hurricane with 75-mph winds. Its center is presently located 20 miles southeast of Matagorda, Texas. The storm is moving to the north-northeast at 10 mph, and should come ashore the upper Texas coast later tonight, possibly near Sargent, Texas. No additional strengthening is anticipated, the hurricane center says. The storm is expected to cross the Houston region on Tuesday morning and then move into southeastern Louisiana and essentially stall before dissipating by Thursday or so.